Calculators
Loan Repayment Calculator
Set a loan amount, interest rate and term to see your repayments and the total interest over the life of the loan.
Range $5,000 – $250,000 · You entered $30,000
This calculator is a rough guide only. Everything shown here is for general informational purposes and is not a quote, an offer, or a pre-approval.
The maths behind the repayment.
The calculator uses the standard amortisation formula every lender uses for principal-and-interest loans: the balance earns interest at your rate while each repayment knocks off a slice of principal, sized so the loan lands on exactly zero at the end of the term.
Illustrative example only: $30,000 over 5 years at 7.00% p.a. works out to roughly $594 a month — about $5,600 of total interest over the life of the loan. Stretch the same loan to 7 years and the repayment drops to about $453, but total interest rises to around $8,000. That trade-off between repayment size and total cost is the main lever to play with.
The rate you enter is the biggest unknown — your real rate depends on your profile, the asset and the lender. One application compared across our panel of 80+ lenders is how you find the sharpest one you actually qualify for.
Common loan repayment questions
Using the standard amortisation formula: your loan amount, the interest rate and the term produce a level principal-and-interest repayment, plus the total interest paid over the life of the loan.
Paying more frequently means you chip away at the balance a little sooner, so you generally pay slightly less interest overall. The calculator shows all three so you can compare.
No — it's principal and interest only. Establishment, account and other fees vary by lender and aren't included here. Ask us for the comparison rate, which factors most fees in.
A single figure that blends the interest rate with most standard fees, so you can compare the true cost of two loans on a like-for-like basis rather than just the headline rate.
It depends on the lender and loan type — many allow extra repayments or early payout, some charge a fee. If flexibility matters to you, tell us and we'll steer you to lenders that offer it.
The calculator uses whatever rate you type in. Your real rate depends on your profile, the security and the lender — we compare 80+ lenders to find the sharpest rate you qualify for.